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Green rectangular circuit board with two small servo motors mounted on a white plastic pan-tilt bracket

LORDWORLD

LORDWORLD 2-DOF Pan-Tilt HAT PCA9685 TSL2581FN development board

SKU CH-Y1CB-DX7Y5

A two-axis camera mount with 12-bit PWM control and ambient light sensing connects to Raspberry Pi or Jetson Nano via a 40-pin header using only two I2C pins

  • Standard 40-pin header fits Raspberry Pi and Jetson Nano
  • I2C control uses only two pins for pan, tilt and light sensing
  • Onboard PCA9685 gives 12-bit PWM for smooth servo movement
  • TSL2581FN sensor approximates human-eye response for ambient light
  • Voltage translator enables 3.3 V and 5 V logic compatibility

Target boards and purpose

The LORDWORLD 2-DOF Pan-Tilt HAT adds motorised camera movement and ambient-light sensing to any Raspberry Pi series board or Jetson Nano through the standard 40PIN GPIO header. It is intended for makers building robots, surveillance rigs or interactive projects that need precise directional control.

Onboard chips and acrylic mount

A PCA9685 PWM driver delivers 12-bit resolution signals to the two servos, while a TSL2581FN light-to-digital converter with embedded ADC returns readings that approximate human eye response. An included acrylic board secures the Raspberry Pi camera module, turning the bare PCB into a ready-to-mount pan-tilt unit.

Wiring simplicity and common pitfalls

Only two I2C pins are required for both motion and light data, and an onboard voltage level translator handles 3.3 V and 5 V logic automatically. Builders must still supply external servo power and ensure the camera ribbon cable is routed without strain; forgetting the separate servo supply is the most frequent cause of erratic movement.

Points forts

  • Standard 40-pin header fits Raspberry Pi and Jetson Nano
  • I2C control uses only two pins for pan, tilt and light sensing
  • Onboard PCA9685 gives 12-bit PWM for smooth servo movement
  • TSL2581FN sensor approximates human-eye response for ambient light
  • Voltage translator enables 3.3 V and 5 V logic compatibility

Caractéristiques

BrandLORDWORLD

Questions sur cet article

Will the PCA9685 PWM chip need recalibration after long use?

The PCA9685 delivers 12-bit resolution PWM signals continuously; no periodic recalibration is required for the chip itself.

What limits continuous pan-tilt movement first?

Servo torque and heat buildup in the actuators set the practical limit before the 12-bit PWM controller does.

How much heat or noise does the HAT add when running all day?

The onboard PCA9685 and TSL2581FN draw minimal current through the 40-pin header, so added heat and noise are negligible.

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